Topic RSS
How we get the oldest available data value from history
October 1, 2015
6:27, EEST
6:27, EEST
jijomonac
Member
Members
Forum Posts: 18
Member Since:
September 24, 2015
September 24, 2015
Offline
October 1, 2015
8:51, EEST
8:51, EEST
Jouni Aro
Moderator
Moderators
Forum Posts: 1026
Member Since:
December 21, 2011
December 21, 2011
Offline
I think the simplest is to do a raw read with numValuesPerNode=1 StartTime=DateTime.MIN_VALUE with historyRead() (NOT historyReadRaw), as explained in http://forum.prosysopc.com/for…..hes/#p1532
Forum Timezone: Europe/Helsinki
Most Users Ever Online: 1919
Currently Online: mithun
11 Guest(s)
Currently Browsing this Page:
1 Guest(s)
Top Posters:
Heikki Tahvanainen: 402
hbrackel: 144
rocket science: 88
pramanj: 86
Francesco Zambon: 83
Ibrahim: 78
Sabari: 62
kapsl: 57
gjevremovic: 49
Xavier: 43
Member Stats:
Guest Posters: 0
Members: 738
Moderators: 7
Admins: 1
Forum Stats:
Groups: 3
Forums: 15
Topics: 1524
Posts: 6451
Newest Members:
jonathonmcintyre, fannielima, kristiewinkle8, rust, christamcdowall, redaahern07571, nigelbdhmp, travistimmons, AnnelCib, dalenegettingerModerators: Jouni Aro: 1026, Pyry: 1, Petri: 0, Bjarne Boström: 1026, Jimmy Ni: 26, Matti Siponen: 346, Lusetti: 0
Administrators: admin: 1